Quarterly Consolidated Statement Of Cash Flows
| Concept | As at 2023-11-30 | 2023-06-01 to 2023-11-30 | As at 2023-05-31 | 2022-06-01 to 2022-11-30 | As at 2022-11-30 | As at 2022-05-31 | 
|---|---|---|---|---|---|---|
| Quarterly consolidated statement of cash flows | ||||||
| Statement of cash flows | ||||||
| Cash flows from operating activities | ||||||
| Profit (loss) before income taxes | — | 
                                                741,675,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                910,431,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Depreciation | — | 
                                                188,659,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                184,034,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Increase (decrease) in allowance for doubtful accounts | — | 
                                                58,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                44,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest and dividend income | — | 
                                                -19,459,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -8,318,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest expenses | — | 
                                                6,283,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,375,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Share of loss (profit) of entities accounted for using equity method | — | 
                                                -29,217,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -28,975,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Decrease (increase) in trade receivables | — | 
                                                -186,604,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -230,716,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Decrease (increase) in inventories | — | 
                                                175,990,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -445,029,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Increase (decrease) in trade payables | — | 
                                                -57,289,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                125,962,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | — | 
                                                69,558,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -27,477,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Subtotal | — | 
                                                880,710,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                461,115,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest and dividends received | — | 
                                                21,775,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                8,309,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest paid | — | 
                                                -6,230,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -3,398,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Income taxes paid | — | 
                                                -430,395,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -332,627,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) operating activities | — | 
                                                465,860,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                133,398,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from investing activities | ||||||
| Purchase of property, plant and equipment | — | 
                                                -520,873,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -106,762,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Purchase of investment securities | — | 
                                                -120,057,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | — | 
                                                -592,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -5,564,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) investing activities | — | 
                                                -653,702,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -119,829,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from financing activities | ||||||
| Proceeds from long-term borrowings | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                200,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Repayments of long-term borrowings | — | 
                                                -156,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -142,392,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Dividends paid | — | 
                                                -157,580,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -141,205,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Dividends paid to non-controlling interests | — | 
                                                -2,387,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                -2,368,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) financing activities | — | 
                                                -173,849,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                94,520,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Effect of exchange rate change on cash and cash equivalents | — | 
                                                212,630,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                267,503,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                -149,062,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                375,593,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash and cash equivalents | 
                                                4,181,535,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,330,597,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,510,715,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,135,122,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |